1 /* 2 * arch/powerpc/platforms/83xx/mpc834x_itx.c 3 * 4 * MPC834x ITX board specific routines 5 * 6 * Maintainer: Kumar Gala <galak@kernel.crashing.org> 7 * 8 * This program is free software; you can redistribute it and/or modify it 9 * under the terms of the GNU General Public License as published by the 10 * Free Software Foundation; either version 2 of the License, or (at your 11 * option) any later version. 12 */ 13 14 #include <linux/stddef.h> 15 #include <linux/kernel.h> 16 #include <linux/init.h> 17 #include <linux/errno.h> 18 #include <linux/reboot.h> 19 #include <linux/pci.h> 20 #include <linux/kdev_t.h> 21 #include <linux/major.h> 22 #include <linux/console.h> 23 #include <linux/delay.h> 24 #include <linux/seq_file.h> 25 #include <linux/root_dev.h> 26 #include <linux/of_platform.h> 27 28 #include <asm/system.h> 29 #include <asm/atomic.h> 30 #include <asm/time.h> 31 #include <asm/io.h> 32 #include <asm/machdep.h> 33 #include <asm/ipic.h> 34 #include <asm/irq.h> 35 #include <asm/prom.h> 36 #include <asm/udbg.h> 37 #include <sysdev/fsl_soc.h> 38 #include <sysdev/fsl_pci.h> 39 40 #include "mpc83xx.h" 41 42 static struct of_device_id __initdata mpc834x_itx_ids[] = { 43 { .compatible = "fsl,pq2pro-localbus", }, 44 {}, 45 }; 46 47 static int __init mpc834x_itx_declare_of_platform_devices(void) 48 { 49 return of_platform_bus_probe(NULL, mpc834x_itx_ids, NULL); 50 } 51 machine_device_initcall(mpc834x_itx, mpc834x_itx_declare_of_platform_devices); 52 53 /* ************************************************************************ 54 * 55 * Setup the architecture 56 * 57 */ 58 static void __init mpc834x_itx_setup_arch(void) 59 { 60 #ifdef CONFIG_PCI 61 struct device_node *np; 62 #endif 63 64 if (ppc_md.progress) 65 ppc_md.progress("mpc834x_itx_setup_arch()", 0); 66 67 #ifdef CONFIG_PCI 68 for_each_compatible_node(np, "pci", "fsl,mpc8349-pci") 69 mpc83xx_add_bridge(np); 70 #endif 71 72 mpc834x_usb_cfg(); 73 } 74 75 static void __init mpc834x_itx_init_IRQ(void) 76 { 77 struct device_node *np; 78 79 np = of_find_node_by_type(NULL, "ipic"); 80 if (!np) 81 return; 82 83 ipic_init(np, 0); 84 85 /* Initialize the default interrupt mapping priorities, 86 * in case the boot rom changed something on us. 87 */ 88 ipic_set_default_priority(); 89 } 90 91 /* 92 * Called very early, MMU is off, device-tree isn't unflattened 93 */ 94 static int __init mpc834x_itx_probe(void) 95 { 96 unsigned long root = of_get_flat_dt_root(); 97 98 return of_flat_dt_is_compatible(root, "MPC834xMITX"); 99 } 100 101 define_machine(mpc834x_itx) { 102 .name = "MPC834x ITX", 103 .probe = mpc834x_itx_probe, 104 .setup_arch = mpc834x_itx_setup_arch, 105 .init_IRQ = mpc834x_itx_init_IRQ, 106 .get_irq = ipic_get_irq, 107 .restart = mpc83xx_restart, 108 .time_init = mpc83xx_time_init, 109 .calibrate_decr = generic_calibrate_decr, 110 .progress = udbg_progress, 111 }; 112